Hello, for example in Game Pass, the installation path is the following, C: \ Users \ User \ AppData \ Local \ Packages \ Microsoft.FlightSimulator_8wekyb3d8bbwe \ LocalCache \ Packages \ Community the final part of the directory Microsoft.FlightSimulator _ ** changes according to the user but the rest is the same,
For Steam I'm not sure, normally the path that Steam uses is c: program files / steam / steamapps / common
I hope I have helped you, greetings.